MATH 201
PROJECT 3 INSTRUCTIONS
Based on Larson & Farber: sections 5.2-5.3
To obtain the data:
1.
2.
3.
4.
Go to this website.
Set the date range to be 6/1/2014 to 6/1/2015.
Click update.
Click the link on the right that says Download to Spreadsheet
This

Instructor: Apryl Lynn
Course: Introduction to Probability &
Statistics
Student: Willie Thomas
Date: 11/17/16
Assignment: Review for Exam 2
1. Use the frequency distribution to the right, which shows the number of voters (in millions)
according to age, to

Determine whether the statement is true or false. If it is false, rewnte it as a tme statement.
A statistic is a measure that describes a population characteristic.
Choose the conect answer below.
cfw_:2- A. False. A statistic is the science of collecting

MATH 201
MYSTATLAB INSTRUCTIONS
MyStatLab is an interactive website where you will complete your homework, quizzes, and
exams for this course. On this website, you can also:
Self-test to improve your math skills.
Study more efficiently.
Create personalize

MATH 201
PROJECT 3 INSTRUCTIONS
Based on Larson & Farber: sections 5.25.3
Note that you must do this project on your ownyou may not work with other students. You are
always welcome to ask your instructor for help.
Go to http:/www.google.com/finance/histor

PROJECT 2
1.
MATH 201-D12
A. When the sixth point was added, the standard deviation jumped considerably
because the entrys relation to the mean changed substantially. As a data sets data
entries are more spread out, the standard deviation will increase.
B

Data
Consists of information coming from observations, counts, measurements, or responses
Statistics
The Science of collecting, organizing, analyzing, and interpreting data in order to make decisions
Population
The collection of all outcomes, responses, m

6.1 Confidence Intervals for the Mean ( Known)
Learn how to fund a point estimate and a margin error
Point Estimate
Example:
Find point estimate by finding the sample mean.
Margin of Error E
Example:
The z score associated with 95%
.9500 = 1.96
Go back to

5.4 Sampling Distributions and the Central Limit Theorem
Properties of Sampling Distributions of
Sample Means
Example:
-
It graphed:
With this information, construct
a probability distribution of the
sample means
Mean and Standard Deviation of the Samplin